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propilot83
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Posts: 625
Joined: Sat Jan 27, 2001 2:41 am

Aircraft Bonding & Epoxy

Sun Jan 10, 2016 2:02 am

A while back I was always wondering how aircraft pieces are bonded together by their joints. I've seen Boeing Commercial Airplane plants where different structures of an aircraft are brought together to be joined, but never got a close up glimpse of how the two metal pieces are bonded together. Then a few days ago, on the Smithsonian Channel I was watching "Air Disasters," the episode on Aloha airlines 737 where part of the upper cabin broke off in flight and NTSB investigators were talking about "aircraft bonding and epoxy application procedures." I finally found my answer, but does anyone have any good links on youtube or diagram drawings that show you up close in detail how bonding aircraft pieces together and applying epoxy during the manufacturing stage? thanks
 
Bambel
Posts: 133
Joined: Sun Jan 18, 2015 8:38 pm

RE: Aircraft Bonding & Epoxy

Sun Jan 10, 2016 6:45 am

Please have a look at this:

http://www.youtube.com/watch?v=4rLCsC2URMc
and
http://www.youtube.com/watch?v=4x3SQIVnV3o

These are the first two parts of a special episode of a german TV show for kids, so don't be surprised to see some cartoons in it. It's about the complete manufactoring process of an A321 for LH and even if you don't understand the german commentry you can see how various fastening techniques work including the resin that is used.

HTH,
b.
 
StTim
Posts: 3650
Joined: Thu Aug 08, 2013 7:39 am

RE: Aircraft Bonding & Epoxy

Sun Jan 10, 2016 4:24 pm

I enjoyed those videos. It made me wonder how much must have changed since then - seeing as what we were seeing was MSN901 being produced. I would suspect that the process whilst largely the same has been streamlined in many ways to reduce hours as well as improvements and weight reduction programmes.
 
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propilot83
Topic Author
Posts: 625
Joined: Sat Jan 27, 2001 2:41 am

RE: Aircraft Bonding & Epoxy

Sun Jan 10, 2016 10:05 pm

Quoting Bambel (Reply 1):
Please have a look at this:

http://www.youtube.com/watch?v=4rLCsC2URMc
and
http://www.youtube.com/watch?v=4x3SQIVnV3o

These are the first two parts of a special episode of a german TV show for kids, so don't be surprised to see some cartoons in it. It's about the complete manufactoring process of an A321 for LH and even if you don't understand the german commentry you can see how various fastening techniques work including the resin that is used.

HTH,
b.

Nice, on the second video at 6:15 that's the part I wanted to know how the panels are joined together. Its like a sleeve, one panel over laps the other and then they are bolted and fastened by bolts, epoxy, etc. Thanks for sharing. Very impressive and interesting.
 
WIederling
Posts: 9291
Joined: Sun Sep 13, 2015 2:15 pm

RE: Aircraft Bonding & Epoxy

Sun Jan 10, 2016 10:16 pm

Quoting propilot83 (Reply 3):

also interesting to see that it is the same 4 circumferential long panel approach
as done on the a350. .. and that the ribs too come in 4 segments.

Some drawings or a video around for how they do it on the 737 / 777 ?
Murphy is an optimist
 
Dalmd88
Posts: 3072
Joined: Fri Jul 28, 2000 3:19 am

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 4:51 am

21st Century Jet had some good footage of the 777 design and production.
https://www.youtube.com/watch?v=0oyWZjdXxlw
https://www.youtube.com/watch?v=5inPWgrjONc
https://www.youtube.com/watch?v=esmbJjK0M7Y

It was a three hour program shown on PBS in the US.

For repair work Boeing typically calls out for a room temp wet lay up. The sealants used give you from 15min to a few hours of working time. During that time either rivets or other fasteners are installed to secure the structure. These are the same sealants used during original manufacture.
 
WIederling
Posts: 9291
Joined: Sun Sep 13, 2015 2:15 pm

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 11:18 am

Quoting Dalmd88 (Reply 5):
https://www.youtube.com/watch?v=esmbJjK0M7Y

Quite interesting to see the differences in objectives and medial conception ( A320 production versus the 777 presentation.)
Murphy is an optimist
 
StTim
Posts: 3650
Joined: Thu Aug 08, 2013 7:39 am

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 12:32 pm

Tried to watch http://www.youtube.com/watch?v=esmbJjK0M7Y but got fed up with the hype after about 5 minutes. More and more programs are like this and it really grates. I want a factual programme not an advertisement for the company. This is not anti Boeing - it is anti TV people and how they produce the programmes.
 
WIederling
Posts: 9291
Joined: Sun Sep 13, 2015 2:15 pm

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 2:06 pm

Quoting StTim (Reply 7):
http://www.wdrmaus.de/sachgeschichten/maus-international/englisch.php5

building an A320 unfortunately appears to not be included 
Murphy is an optimist
 
kurtverbose
Posts: 579
Joined: Thu Jun 26, 2014 9:33 pm

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 5:56 pm

My car chassis (by Lotus) was made the same way. Extrusions etched, anodised, epoxy glue and rivited.

Still holding up even though it's quite old now.
 
LH707330
Posts: 2304
Joined: Fri Jun 15, 2012 11:27 pm

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 7:12 pm

Quoting Bambel (Reply 1):
These are the first two parts of a special episode of a german TV show for kids, so don't be surprised to see some cartoons in it. It's about the complete manufactoring process of an A321 for LH and even if you don't understand the german commentry you can see how various fastening techniques work including the resin that is used.

I loved that documentary, saw it when I was about 10, and was annoyed at the stupid cartoons in the way of the aircraft building. I love the announcer too, "Moin, moin, moin!"
 
Bambel
Posts: 133
Joined: Sun Jan 18, 2015 8:38 pm

RE: Aircraft Bonding & Epoxy

Mon Jan 11, 2016 7:56 pm

Quoting StTim (Reply 7):

Tried to watch http://www.youtube.com/watch?v=esmbJjK0M7Y but got fed up with the hype after about 5 minutes. More and more programs are like this and it really grates. I want a factual programme not an advertisement for the company. This is not anti Boeing - it is anti TV people and how they produce the programmes.

OMG, unbearable. By their standards, even watching that movie is life-threatening.

Unfortunately again only in german, but this documentation about the A320 is from the beginning of the 90s and there is absolutely no over-dramatisation. Actually, not even a tiny bit of dramatisation.
http://www.youtube.com/watch?v=sAMGg48yYhM

b.

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